Well. If you can hit your 5-iron 5,10,15,20...full swing with no leakage you have nothing to fear.
Ben is an instructor by heart. Initially it may appear as if he is tossing you around a bit but that's not his intention. All he wants to do is to feed you with good information & make you hoganize it. He'll be all over you. I felt that's what he lives for. To inform and explain.
Have a great time absorbing and applying.